, . 3.9 :
3.9 - | ||||
b h, | ||||
15 8 4,0 | , b , h , | |||
- | 30 12 5,0 | |||
10 8 4,0 | ||||
8 6 3,5 | ||||
15 8 4,5 | ||||
12 10 5,0 | ||||
6 10 3,0 | ||||
20 12 5,0 | ||||
12 6 3,0 | ||||
15 8 4,5 |
.2.5-28-2006 , .
:
1. ;
2. , ( ) , ;
3. ;
4. ;
5. ;
6. ( ).
. , , , . (. 7 .).
3.9 - | ||||||
: | ||||||
-20 | ||||||
-40 | ||||||
-40 | ||||||
-40 | ||||||
-40 | ||||||
-30 | ||||||
-80 | ||||||
-80 | ||||||
-150 | ||||||
-20 |
[9], , .
.2.5-28-2006 /.1/ , ).
i :
i = S / [h(a+b)],
|
|
S - , 2:
S = a b,
a - , b - , ;
h - ( ), .
i ρ, ρ, ρ [9] η, %:
η = f(; ρ; ρ; ρ),
ρ; ρ; ρ - , (. 3.9 ).
:
n = ( S K3 Z) / (N η),
n - , . ;
N - , . . 2. , ;
- , ( );
.2.5-28-2006, ;
K3 - , , ;
Z - : Z = 1,15, () Z = 1,1;
S - ,2;
η [9] .
, (N), (n), ( ).